Cutting-tool mounting and controller



w.V w. vosPER CUTTING' TOOL MOUNTING CONTROLLER Filed oct. 29. 1925 2 sheets-sneer 1 July 12, 1927. 1,635,447

INK/ENTE :E Y

ATTDRNEY l 1 Ju y- 12 927 W. w. vosPER CUTTING TOOL MOUNTING AND CONTROLLR Filed OCT.. 29, 1925 .2 Sheets-'Sheet 2 Patented July 12, 1927.

UNITED STATES i,e3js,447

PATENT orricE.

WILLIAM W. VOSPEB, OF TOLEDO, OHIO, ASSIGNOB TO THE TOLEDO PIIIPE THBEADING A & MACHINE CO., Ol' TOLEDO, OHIO, A CORPORATION 0F OHIO.

i CUTTING-TOOL MOUNTING AN D CONTROLLER.

appiioaaa'n mea occuper ze, 122s. serial 1m.L sacas.

This invention relates toanchorin work and o erating thereoirby cutting too during r ative rotation between said Work and tools.

AThis invention has utility when incorporated in pipe threading and cutting equipment especially as for power drive.

Referring to the drawings: Fig. 1 is a side View, Withparts broken away, of an embodiment of the invention in a power driven apparatus Fig. 2 is a plan view of the apparatus of Fig. 1, parts bein broken away; J

Fig. 3 is an en view of the apparatus of Fig. 1 showing the tools swung away from operative position;

Fig. 4 is a distributed View .of the threading cutter, reamer and mounting; and

Fig. 5 is a section on the line V-V, Fig. 1. Motor 1 as mounted on truck 2 is edective through shaft v3 and driving plate-4 to rotate shaft 5 having collar 6 splined thereon. Housing 7 for the transmission and into which the shaft 5 extends carries ulcruin pin 8 for lever 9 having socket 10 in which is disposed sprin 11 normally thrusting .nose 12 into centra? neutral seat 13 or lateral seats 14, 15, for yieldably holding the lever 9 into such adjusted position. This lever 9 carries depending portion 16 coacting with the collar 6 for throwing jaw clutch member 17 into driving engagement with jaw clutch member 18. Fast with this jaw clutch member 18 is gear 19 loosely mounted on the shaft 5 and in mesh with gear 20 on sleeve 21v in upper housing member 22 carrying disk 23 having screws 24 rotatable for adjusting chuck jaws 25 into engaging or releasing position as to the piece of Work, as an external c lindrical rod, har, or pipe. This may be the low speed forward or thread cut-ting rotation or the tool.

It the lever 9 be rocked in the reverse direction, the clutch collar 6 has its jaw clutch 26.thrown into meshing Arelation-with jaw clutch member 27 fast with gear 28 loosely mounted on the shaft 5. This gear 28 is in mesh with pinion 29 fixed with gear 30 loosely mounted on stub shaft 31` carried by the housing 7. This gear 30 is in mesh with gear 32 on the rotary work holder sleeve 21 and provides through this speed up gearing, a high speed of reverse rotation for this holder 21 as havingthe work clamping means or chuck 25 at one end and centering guide 33 at the opposite end as locked in position by set screw 34. Nut 35 positions shaft 31 in the frame or housing 7. Oil cup 36 is effective through duct 37 for lubricating this intermediate shaft 31 carrying the gears 29, 30. Oil hole closures 38, 39, in upper housing member 22 lubricates the bearings in. the

housing 7 22, for this rotary work holder. This housin 7 is herein shown as mounted on bench 4() y bolts 41. This bench or table 40 is provided with legs 42 and pivot bolt 43. carrying tray 44 in which substitute guides 3 3, as Well as dies or cutting tools with their yokes, may be placed. This tray 44' is conveniently swingable into position' under the deck 40 of this bench or table, when out of use, so that the bench serves as a closure therefor.

Bolts 45, coacting with the housing 7 remote from the driving end of the shaft- 5, mount pan 46 with the housing 7, while bars 47 ixed with the remote end of such pan 46 are anchored by bolts 48 with the bench or table. .The upper ends of these bars 47 are fixed to the pan by bolts 49. This pan 46 has adjacent the housing 7, ears 50, 51. From the ear 51 arises bracket 52 carrying in its upper portion, vertical pivot pin 53 from .which extends radial arm 54 having pivot p in 55mounting oil cup 56 having overhang V85 rim 57 ati its upper portion to minimize slop of oil upon quick swinging of this cup into and out of o erative position. Valve 58 controls flow o screw -cutting oil or lubricant from the cup 56 by duct 59 to be spilled on to the operating part of the Work to keep down the temperature, as well as lubricate the tools. Such liquid, as passing from the work, spills into supplemental tray 6() having perforate bottom 61. This tray 6() is disposed inthe pan 46 and operates as a strainer to hold the turiiings from the metal or work acted upon, while allowing the liquid to pass into 'the bottom of the pan -and How from thence by duct 62 as controlled 100 by valve 62 to be gathered in pail 63 below this table and thus permit resupply of the liquid by pouring into the cup 56. From the ears 50, 51, toward the bolts 49, are bars 64, 65, as guides, parallel to each other and parallel to'the a'xis extended of the rotary Work holder 2l determining a plane to one side of the axis of the said work holder 21. Accordingly, the horizontal plane through the axis o-the work holder uw 21 is above these ides`64, The guide has integral yoke eitension v67 terminating in seat 68 which in the osition of this yoke extension 67, `as a hol er, when swuii toward the guide 65, will rest on such gui e 65.

This yoke holder 67 has central opening 69,

which in rest position of this oke or holder has lits axis coincident with t e' axis of the rotary holder 21. This rockable holder l67 carriesv ins 7 0, 71, protruding therethrough. Upon t e sidel of this yoke 67 toward the chuck or rotary work holder there may be mounted supplemental carrier 72 having ears 73 perforate for sliding into position .on the pins 70, 71, and thereby mounting this supplemental carrier 72 having an annular series of dies 74 being chasers in sequence for thread cuttingo eration.- This su plemental carrier 72 has c earance space 75 tween its base ring 76 and die anchoring ring 77 as held in position by' screws 78. This region of clearance permits the dropping of screw cutting oil or lubricant from the duct 59 through -one of these openings 75 directly uponthe cutting region of the work, while the turned olf metal may also clear this supplemental carrier and readily drop into the tray without any clogging of thetool.v

The pins 70, 71, permit ready replacement of this tool as to the dies for the desired pitch of thread or diameter in the workin operations. l..

In the event the work is tubular, as p1 e, and it is desired to chamfer or ream out t e ends of the pipe in the regionof the portion which is externally threaded, the'p'ins 70,71,

mayhave slidably mounted thereon remote from the rotary holder 21, yoke 79 carrying cutting tongue 80 which, as entering the pipe, will, during the relative rotation of the pipe, shave or cut off a bevel inward of sa'id open end and from such initial thrust.l position will graduallywork out automa'.`

tically as the chamfer or'cut is completed. During the continuance of the threadingoperation effected for starting by shoving the carrier 72 into the rotating work, the dies as engagin will automatically' feed into the work and t e yoke 67 slide along the guides 64, 65, during this slow speed cutting operation. The taper of the tongue 8O is sucient to care for a range of sizes of the pipe.

On the guide is loosely mounted sleeve 81 havin arm 82 cariying guide 83 for cutting too 84 adjuste by hand wheel 85. Terminally, this arm 82 has seat 86 which in operative position of the tool is against guide 64 as a rest.

Referring to Fig. 3, the cutting operationl has occurred with the work rotating counterclockwise thus eil'ecting the' clockwise or right hand threading of the work. This counterclockwise rotation tends to pull the yoke 67Vdown upon the rest 65. This thread cutting operation has occurred through the slow speed transmission of the gears 19, 20. For backing off the threading tool from the work, the lever 9 is rocked to reverse for the high speed driving. of the rotary holder throughthe ear 30. This is in the reverse or clockwise irection. Furthermore, this is the direction wherein the cutting tool is used and in such use, the direction of rotation tends lto hold the seat 86 against the guide 64. In this cutting operation, there is no travel of the cutter alon the The sleeve 81 is provi ed with lug 87 requiring the tilting of this cuttei` carrier outward, when thethread cutter is down in position, to give guide clearance. Further, as the thread cutter travels, this lug 87 precludes any throwing ofthe arm 82 into 0perative position. Furthermore, the sleeve 66 has lug 88 coacting with led e 89 on the pan 46 to hold this yoke 67 out o operative position when shoved clear of seat 86 to allow such to rest on the ide 64. In this out. wardly or open position of the yoke 67 and the arm 82, lu 90 rest against the outer upper edge of t e pan46 andthus limit the outer swing of these tool carrier devices.

In operation, it is only necessary to couple the driving plate 4 tothe shaft 5, or otherwise supply power thereto by a direct connected motor. Such shaft 5 may be running idly with the lever 9 in the neutral or central seat 13. With the pipe as the article of work disposed in the rotary holder 21, the lever 9 may be turned to effect driving throu h thejaw clutch 17, 18, for the slow spee rotation of such work. The supplemental carrier 72 is on pins 70, 71, of yoke 67. The seat 68 slidably coacts with the guide 6,5. Such work and tool are brought into abutting relation by shoving the yoke 67 manually to havethe dies 74 engage with the pipe. This shove may be on the yoke 79 instead` of on the yoke 67 for simultaneously effecting a reaming of the pipe. As the threads take hold, the feed, at say 24 R. P. M. up to 40 R..P. M.

ides 64, 65.`

according to thesize of pipe, may be comitself out prior thereto. As the threading tool has thus been high speed worked oi, the position of the pipe sa for cutting a length or short nip le may e determined by releasing4 the c uck and feeding the pipe up. This cutting of the pipe by the tool 84 `may occur close up to the chuck disk 23 and thereby the machine has advantage of the single mounting and holding means for minimizing possible vibration during the cutting operation. the parts-is such that the cut oli for the pipe may be of a desired length permitting -iao The proportioning of the single chuclring or locking of the pipe for the cutting to leave such pipe ready for the threading operation. Accordingly, this structure'is .one permitting speed of man1pu.

lation with advantages of superior cutting operationsincidental thereto.

llVhat iselaimed and it is desired to secure by United States Letters Patent is:

1. Alrotary work holder, a pair of parallel gu s-'parallel to the axis of the holder and on y e side of a axis offsaid rotary holder, a tool carrier slidably mounted on one ot said guides and swingable through said planete rest on the other guide, a tool mounted in the tool carrer, and-means for rotating the work holder through'they action of the work on the tool tendingi. to urge the tool-carrier-mounting guide through said plane toward the rest guide of said tool carrier for effecting auto- 'matical' holding ot said tool carrier into the work.

2. A rotary work holder, a pair of parallel guides parallel to the axis ot the holder, and one side of a plane through the axis of said rotary work holder, a tool carrier slidably mounted on one side of said guides'and swingable through -said plane to rest on the other guide, a threadm tool mounted inthe tool carrier, means or r0 tating one of said holders for thereby causing progressing of the other holder along said guide toward the one, and a pluralit of chasers` in sequence establishing a pitc and mounted in the tool carrier.

3. A rotary work holder, a pair of guides parallel to the axis extended of said rotary holder and below the horizontal plane of said axis, a threading tool holder mounted on-one of said guides, a cutting tool holderfmounted on the other of said guides, said tool holder in working position swingable against the other guide as a seat, and control means precluding simultaneous'posi-v tioning of both holders for working operation.

-4. A rotar parallel to t holder andsaid axis, a threading on one of said guides,

work holder, a pair of guides e axis extended of said rotary below the horizontal plane of tool holder mounted a cutting tool holder mounted on the other of said guides, said plane through the and control means adjacent 5. A rotary holder, guide means eccentric thereof and extending therebeyond, a non.

rotary holder hinged to said guide means and swingable thereon toward and from the axis of said rotary holder, means on one o said holders for supporting work, a tool carried bythe other holder for coacting with work supported effective for progressing one holder along the guide as to the other holder,

the guide coacting to preclude swinging of the non-rotary holder toward the rotary holder and thus render the tool inactive.

6. A work holder, a pair of parallel guides parallel to the axis of the holder and one side of the axis of said work holder with said work holder disposed intermediate said guides, a tool carrier slidably mounted on one of said guides and swingable to rest on the other guide, a threading tool mounted in the tool carrier, and means for rotating one of said holders for thereby causing progressing 'of the other holder along said guide.

A rotary work holder, cutting chasers, a ring carrier having a pair of air of rods laterally of the axis extended of said holder upon which rods the chaser carrier ring is mounted by said eyes, and a rest from which the mounting is swingable into working position as to the work.

8. A rotary pipe holder, a thread cutter mounted laterally of the axis extended of said holder, a rest from which the cutter is swingable into working position as to the pipe, mounting means for the cutter whereby the thread cutter as coacting with the pipe is eiective for feeding the cutter along the ipe, and a cutter tongue slidabl mounted with the thread cutter and -shi table into pipe reaming position as to the pipe during thread cutter o ration.

In witness w ereof I aix my signature.

WILLIAM W. VOSPER-4 for the chasers lili a series of thread A eyes, a mounting havinfr a K 

